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AhaBulb: Stuff Everyone Should Know · ahabulb.com/pilot-the-leans-illusion

What causes the flight illusion called the leans?

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  1. Staring at a single light at night
  2. A sudden climb after takeoff
  3. Leveling the wings after a slow, unnoticed turn

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References

  1. FAA Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 17 www.faa.gov/regulations_policies/handbooks_manuals/aviation/faa-h-8083-25c.pdf Checked 2026-10-09.

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